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DNS Amplification attack?
- Subject: DNS Amplification attack?
- From: cmadams at hiwaay.net (Chris Adams)
- Date: Tue, 20 Jan 2009 21:17:50 -0600
- In-reply-to: <[email protected]>
- References: <[email protected]>
Once upon a time, jay at miscreant.org <jay at miscreant.org> said:
> I've also noticed that on a server running BIND 9.3.4-P1 with
> recursion disabled, they're still appear to be getting the list of
> root NS's from cache, which is a 272-byte response to a 61-byte
> request, which by my definition is an amplification.
Add "additional-from-cache no;" to the options{} section of your
named.conf.
--
Chris Adams <cmadams at hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.